Apparatus for carding cotton



May 20, 1930. A. w. ARNOLD 1,759,563

APPARATUS FOR CARDING COTTON Filed NOV. 16, 1928 Elmowtoz 1 M 5 QWWULPatented May 20, 1930 A UNITED STATES PATIENT OFFICE AL E T w. ARNOLD,0F CHARLOTTE, norms: oAEoLiEa ssIenoR T0 EDWARD o. BOWERS AND CHARLES L;FELDMAN, RECEIVERS FOR wIcKwmE SPENCER STEEL COMPANY, or NEW YoEK, n.1,A CORPORATION or MASSACHUSETTS Arr RA'rUs FOR CARDING common Applicationfiled November 16, 1928. Serial No. 319,799.

The present invention relates to devices for carding cotton andembodies, more specifically, an improved method of carding as well as anew form of carding cylinder-which 1s constructed to cleanandseparatethe impurities from cotton in a more-effective manner thanaccomplished heretofore;

It has been common practice toform the teeth onthe carding cylinder witha bend so thatthe ends are 'angularly disposed to the circumference. Thesupposition has been that such bent teeth will pick off the strands fromthe lickerin more effectively and prevent them from flying off of theteeth due tocentrifugal force. Due to the packing of the strands at thebottom of the teeth, considerable difliculty isencountered in removingthe strands and cleaning the teeth and it has been necessary to stop thecylinder at regularv intervals to remove all packed strands and cleanthe teeth thereof. This frequent in, terruption in service'is quiteobjectionable and the cleaning operation difiicult, and a great demandexists for a machine which is not subject to these delays; I

The present invention employs short and straight teeth on the cardingcylinder, such teeth being substantially radially disposed with respectto the cylinder. In this manner, packing of the strands is eliminatedand the machine maybe operated-continuously and Without interruption."

Accordingly, it is an object of the present invention to provideacarding cylinder with substantially radial "straight teeth wherebypacking of the strands is eliminatedand the cleaning of the cylindergreatly facilitated. Further objects of the invention willappear as theinvention'is described more fully in connection with the accompanyingdrawings, 7

wherein: A j ,7

Figure 1 is a view in elevation, showing an apparatus for cardingcotton. I

' Figure 2 is a View in section, taken throng the surface of the cardingcylinder.

or cotton batting from the pickers, gFeedrolls 6 and" endless beltb'carry the lap tothe with teeth 0 having a forward cant orbend.

Ashield 0 holds the cotton against theteeth and, in this manner, thecotton iscarried from the feed rolls 6 to a carding cylinder 03. Thecardingcylinder rotates in the same direction as the liokerin and isprovided with substantially radial straight teeth d upon its surface.These teeth catch the strands of cotton on the lickerin and carry themfrom one side of the carding cylinder to theother, a top fiat 6 beingprovided for straightening thestrands on the carding cylinder. This topfiat is formed of'an endless belt provided with straight teeth 6 asclearly shown in Figure 1.

A doifer f is rotated in such manner that the teeth f thereof at theside of the carding cylinder rotate in the same direction as the adacentside of the carding cylinder. These teeth f are bent rearwardlywith respectto the directionof rotation and remove the strands from thecarding cylinder. A hopper g is provided to receive the screenings 1such as parts of the boll, hull, etc. i

' In one form of the apparatus the diameter of the carding cylinder wasapproximately 50 inches, it being driven at a speed of approximatelyrevolutions per minute.

driven at a speed of 11 revolutions per min.-

The diameter of the doffer was 27 inches and I ute. The screenings fallfrom the radial teeth by gravity when on the; underside of the cylinder,the cotton being held to the teeth by the pressure of the air due to therotation of the cylinder. In this manner,

the difficulty of removing the strippings'is entirely eliminated and.the cylinder is kept clean without any interruptions in' the operationof'the mechanism. There is no tendency for the cotton to pack at thebottom'of" the teeth and the carding is accomplished far moreefliciently thanheretofore. j

7 Although the invention has. been described Y with reference to thespecific construction I p shown in the drawings, it is not to belimited, Referring tov the above drawings, a desigg nates acylinder'which is wound with the lap save as defined in the appendedclaim. 'I claim as my invention:

An apparatus for carding cottonj'comprisi 1 y y r. 1,759,5 1;

stantially radially to'the axisrof the cylinder, 3 top flat for thecylinder, and'straight teeth projecting substantially radially towardthe carding cylinder and 'cooperatmg with the straight teeth thereofi; vThisspecificatim signed this 13thday' of November, A. D; 1928. r t j '74 v 1 ALBERTrW. ARNOLD.

